Function getSpecializedCursorTemplate

generator/annotator.cpp:857–894

basically loosely inspired from clang_getSpecializedCursorTemplate

//basically loosely inspired from clang_getSpecializedCursorTemplate
static clang::NamedDecl *getSpecializedCursorTemplate(clang::NamedDecl *D) {
    using namespace clang;
    using namespace llvm;
    NamedDecl *Template = 0;
    if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) {
        ClassTemplateDecl* CXXRecordT = 0;
        if (ClassTemplatePartialSpecializationDecl *PartialSpec = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord))
            CXXRecordT = PartialSpec->getSpecializedTemplate();
        else if (ClassTemplateSpecializationDecl *ClassSpec = dyn_cast<ClassTemplateSpecializationDecl>(CXXRecord)) {
            llvm::PointerUnion<ClassTemplateDecl *,
            ClassTemplatePartialSpecializationDecl *> Result
            = ClassSpec->getSpecializedTemplateOrPartial();
                if (Result.is<ClassTemplateDecl *>())
                    CXXRecordT = Result.get<ClassTemplateDecl *>();
                else
                    D = CXXRecord = Result.get<ClassTemplatePartialSpecializationDecl *>();
        }
        if (CXXRecordT)
            D = CXXRecord = CXXRecordT->getTemplatedDecl();
        Template = CXXRecord->getInstantiatedFromMemberClass();
    } else if (FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) {
        FunctionTemplateDecl* FunctionT = Function->getPrimaryTemplate();
        if (FunctionT) {
            if (auto Ins = FunctionT->getInstantiatedFromMemberTemplate())
                FunctionT = Ins;
            D = Function = FunctionT->getTemplatedDecl();
        }
        Template = Function->getInstantiatedFromMemberFunction();
    } else if (VarDecl *Var = dyn_cast<VarDecl>(D)) {
        if (Var->isStaticDataMember())
            Template = Var->getInstantiatedFromStaticDataMember();
    } else if (RedeclarableTemplateDecl *Tmpl = dyn_cast<RedeclarableTemplateDecl>(D)) {
        Template = Tmpl->getInstantiatedFromMemberTemplate();
    }

    if (Template) return Template;
    else return D;
}


std::pair< std::string, std::string > Annotator::getReferenceAndTitle(clang::NamedDecl* decl)